电场强度是静电学中最基本、最重要的概念之一,也是分析、求解电场问题的关键.对场强的求解一般可用其定义式、点电荷场强公式以及匀强电场公式等,必要时还需一些特殊的处理方法,下面对如何求解电场强度作一综述,供同学们参考.一、运用场强的定义求解例1如图1(a)所示,A为带正电 Electric field strength is one of the most basic and important concepts in electrostatics, and it is also the key to analyzing and solving electric field problems. The field strength can be generally solved by its definition formula, point charge field strength formula and uniform electric field formula, etc. Also need some special treatment methods, the following is a summary of how to solve the electric field strength, for the students to refer to. First, the use of the definition of field strength solution Example 1 shown in Figure 1 (a) below, A is positively charged